CN108638777B - Transverse plate spring structure and double-cross arm structure front independent suspension - Google Patents
Transverse plate spring structure and double-cross arm structure front independent suspension Download PDFInfo
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- CN108638777B CN108638777B CN201810663217.9A CN201810663217A CN108638777B CN 108638777 B CN108638777 B CN 108638777B CN 201810663217 A CN201810663217 A CN 201810663217A CN 108638777 B CN108638777 B CN 108638777B
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- cross arm
- plate spring
- knuckle
- leaf spring
- arm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/08—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only arranged substantially transverse to the longitudinal axis of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/10—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/11—Leaf spring
- B60G2202/114—Leaf spring transversally arranged
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- Vehicle Body Suspensions (AREA)
Abstract
The invention provides a transverse plate spring structure and a front independent suspension with a double-cross arm structure, which relate to the technical field of automobile manufacturing, and the transverse plate spring structure comprises: the steering knuckle comprises a steering knuckle, an upper cross arm and a lower cross arm, wherein the upper cross arm and the lower cross arm are respectively connected with the steering knuckle, a transverse plate spring, a buffer block and a shock absorber are arranged on the lower cross arm, and a steering pull rod knuckle arm is further arranged on the steering knuckle. The transverse plate spring structure provided by the invention has the advantages that the transverse plate spring, the buffer block, the shock absorber and the knuckle arm of the steering pull rod are integrated, the transverse plate spring saves the suspension space, the structural feasibility is provided for reducing the height, and meanwhile, the weight of an axle and an elastic element is reduced due to the integrated structure of the lower cross arm, the light weight of the whole vehicle is facilitated, the suspension space is saved, the light weight of the vehicle is reduced, and the like.
Description
Technical Field
The invention relates to the technical field of automobile manufacturing, in particular to a transverse plate spring structure and a double-cross-arm structure front independent suspension.
Background
Automotive suspension systems can be divided into independent suspensions and dependent suspensions. Three common independent suspension systems are macpherson, double wishbone, and multi-link independent suspensions. The MacPherson type independent suspension is simple in structure, light in weight, small in occupied space and convenient for spatial layout of a front power system; the upright post is integrated with the shock absorber, has strong shock absorption performance, but weak bearing and poor stability, and is mainly applied to the front independent suspension of the double-cross-arm structure of the household car and the light commercial vehicle with lower front axle load. The double-wishbone type independent suspension is characterized in that a wishbone is added on the basis of a Macpherson suspension, force and moment between a frame and wheels are borne by the wishbone, the bearing capacity and the stability are stronger than the Macpherson suspension, but the double-wishbone type independent suspension is large in occupied space and high in cost, and is mainly used for suspensions of medium-high-grade passenger cars, high-grade business cars, medium-high-end buses and luxury trucks. The multi-link suspension uses various link devices to connect wheels with a vehicle body, has the best performance of a chassis, but lacks a main bearing rod piece, has weaker bearing capacity, is mainly used for a rear suspension of a high-end passenger vehicle, and is not suitable for commercial vehicles with larger bearing capacity.
At present, spring elements commonly used on automobiles mainly comprise a spiral spring, a torsion bar spring, an air spring, a steel plate spring and the like, and a longitudinally-arranged steel plate spring is not suitable for being applied to an independent suspension; the torsion bar spring occupies a large space; the spiral spring has limited bearing capacity and occupies the transverse and vertical spaces of the suspension; the air spring occupies the lateral and vertical space of the suspension.
The longitudinal leaf spring of the suspension in the existing commercial vehicle occupies a larger suspension space, and the whole vehicle has heavier mass.
Disclosure of Invention
The invention aims to provide a transverse plate spring structure, which aims to solve the technical problems that a longitudinal plate spring of a suspension in an existing commercial vehicle occupies a large suspension space and the whole vehicle is heavy in weight.
It is another object of the present invention to provide a double wishbone configuration front independent suspension including the above-provided transverse leaf spring configuration.
In order to solve the technical problems, the invention adopts the following technical scheme; the present invention in its first aspect provides a transverse leaf spring structure, comprising: the steering knuckle comprises a steering knuckle, an upper cross arm and a lower cross arm, wherein the upper cross arm and the lower cross arm are respectively connected with the steering knuckle, a transverse plate spring, a buffer block and a shock absorber are arranged on the lower cross arm, and a steering pull rod knuckle arm is further arranged on the steering knuckle.
The lower cross arm of the transverse plate spring structure provided by the invention is provided with the transverse plate spring, the buffer block and the shock absorber, the steering knuckle is also provided with the steering pull rod knuckle arm, and through the integration of the transverse plate spring, the buffer block, the shock absorber and the steering pull rod knuckle arm, the transverse plate spring saves the suspension space, thereby providing structural feasibility for reducing the height, and meanwhile, the integrated structure of the lower cross arm reduces the weight of an axle and an elastic element, facilitates the light weight of the whole vehicle, and has the advantages of saving the suspension space, lightening the vehicle and the like.
In any one of the above technical solutions, further, the lower cross arm is provided with a plate spring end fixing seat for fixing the transverse plate spring. The end fixing seat of the plate spring is inverted-U-shaped, the bottom of the plate spring is provided with a mounting plate, and the mounting plate is provided with a mounting hole and is connected with the lower cross arm through a screw.
In any of the above technical solutions, further, an integrated bracket for fixing the shock absorber is further provided on the lower cross arm, and the transverse leaf spring is inserted into the integrated bracket and connected with the leaf spring end fixing seat.
In any of the above technical solutions, further, the integrated bracket is provided with a hinge sheet for hinging the damper. The hinged sheet is vertically arranged at the top of the integrated support, a hinged hole is formed in the hinged sheet, and the bottom of the shock absorber is hinged to the hinged sheet through the hinged hole.
In any of the above technical solutions, further, a buffer block made of rubber is disposed on the integrated bracket. The buffer block is made of rubber, is of a hollow structure, is small in load and small in compression stroke, is small in rigidity, is in an auxiliary spring action stage, and provides an elastic element function. When the load is large and the compression stroke is large, the rigidity of the buffer block is large, and the buffer block is in the action stage of the limiting block and provides the buffering and limiting functions.
In any of the above solutions, further, the knuckle side portion is connected to the tie rod knuckle arm. The upper part of the steering knuckle is connected with the upper cross arm, the lower part of the steering knuckle is connected with the lower cross arm, the connecting piece positioned on the side part of the steering knuckle is connected with the knuckle arm of the steering pull rod, and the connecting piece is positioned between the upper cross arm and the lower cross arm.
In any of the above technical solutions, further, the knuckle is connected to the knuckle arm through a steering rod.
In any of the above technical solutions, further, a power cylinder is provided on the tie rod knuckle arm. The steering pull rod knuckle arm is a gear rack steering pull rod knuckle arm, and a parallel power-assisted oil cylinder is arranged on the steering pull rod knuckle arm to ensure that enough steering force can be provided.
In any of the above technical solutions, further, the middle of the transverse leaf spring is connected to the frame through a leaf spring middle fixing seat.
The independent front suspension with the double-wishbone structure provided by the second aspect of the present invention is provided with the transverse leaf spring structure provided by the first aspect, so that all the beneficial effects of the transverse leaf spring structure provided by the first aspect are achieved, and details are not repeated herein.
By adopting the technical scheme, the invention has the following beneficial effects:
the lower cross arm of the transverse plate spring structure provided by the invention is provided with the transverse plate spring, the buffer block and the shock absorber, the steering knuckle is also provided with the steering pull rod knuckle arm, and through the integration of the transverse plate spring, the buffer block, the shock absorber and the steering pull rod knuckle arm, the transverse plate spring saves the suspension space, thereby providing structural feasibility for reducing the height, and meanwhile, the integrated structure of the lower cross arm reduces the weight of an axle and an elastic element, facilitates the light weight of the whole vehicle, and has the advantages of saving the suspension space, lightening the vehicle and the like.
Furthermore, a leaf spring end fixing seat used for fixing the transverse leaf spring is arranged on the lower cross arm.
Furthermore, an integrated bracket for fixing the shock absorber is further arranged on the lower cross arm, and the transverse plate spring is arranged on the integrated bracket in a penetrating manner and is connected with the fixed seat at the end part of the plate spring.
Furthermore, a buffer block made of rubber is arranged on the integrated support.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic front structural view of a transverse plate spring structure according to an embodiment of the present invention;
FIG. 2 is a rear view of a transverse leaf spring structure according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a lower cross arm and an integrated bracket in a transverse plate spring structure according to an embodiment of the present invention;
FIG. 4 is a schematic view of an integrated bracket and damper in a transverse leaf spring configuration according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a knuckle in a transverse leaf spring structure according to an embodiment of the present invention.
Reference numerals:
1-a power-assisted oil cylinder; 2-knuckle arm of steering rod; 3-a shock absorber;
4-upper cross arm; 5-a steering knuckle; 6-lower cross arm;
7-a plate spring end fixing seat; 8-an integrated scaffold; 9-a buffer block;
10-a plate spring middle fixing seat; 11-U-bolt; 12-a non-metallic spacer block;
13-transverse leaf springs; 14-a steering tie rod; 15-a connector;
16-hinged flap.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be further explained with reference to specific embodiments.
Example one
As shown in fig. 1 to 5, the transverse leaf spring structure according to the embodiment of the first aspect of the present invention includes a knuckle 5, an upper cross arm 4 and a lower cross arm 6, wherein the upper cross arm 4 and the lower cross arm 6 are respectively connected to the knuckle 5, the lower cross arm 6 is provided with a transverse leaf spring 13, a buffer block 9 and a shock absorber 3, and the knuckle 5 is further provided with a steering rod knuckle arm 2.
In the transverse plate spring structure, the lower cross arm 6 is provided with the transverse plate spring 13, the buffer block 9 and the shock absorber 3, the steering knuckle 5 is also provided with the steering rod knuckle arm 2, and the transverse plate spring 13 saves the suspension space through the integration of the transverse plate spring, the buffer block 9, the shock absorber 3 and the steering rod knuckle arm 2, thereby providing structural feasibility for height reduction, reducing the weight of an axle and an elastic element through the integrated structure of the lower cross arm 6, facilitating the light weight of the whole vehicle, and having the advantages of saving the suspension space, lightening the vehicle and the like.
A plurality of functional components are integrated on the lower cross arm 6, the transverse and vertical space of the suspension is reduced, the maximum outward expansion of the transverse coordinate of the hard point of the suspension can be realized, the effective arrangement of the lengths of the upper cross arm and the lower cross arm 6 is ensured, and the arrangement space of the double-cross-arm independent suspension is met. Meanwhile, the gravity center and the height of the mass center of the whole vehicle are reduced, and the weight of the suspension can be fully reduced.
In any of the above-described embodiments, the lower cross arm 6 is further provided with a plate spring end fixing base 7 for fixing the transverse plate spring 13. The plate spring end fixing seat 7 is in an inverted-V shape, the bottom of the plate spring end fixing seat is provided with a mounting plate, a mounting hole is formed in the mounting plate, and the plate spring end fixing seat is connected with the lower cross arm 6 through a screw through the mounting hole.
The inverted-V-shaped leaf spring end fixing seat 7 is mounted on the lower cross arm 6 and is completely closed, so that the sand and dust sealing performance of the end part of the transverse leaf spring 13 is improved.
In any of the above technical solutions, further, an integrated bracket 8 for fixing the shock absorber 3 is further provided on the lower cross arm 6, and the transverse plate spring 13 is inserted into the integrated bracket 8 and connected with the plate spring end fixing seat 7.
The integrated support 8 is arranged in a door shape, a gantry hole is formed in the middle of the integrated support 8, and the transverse plate spring 13 can conveniently penetrate through the gantry hole.
In any of the above technical solutions, further, the integrated bracket 8 is provided with a hinge sheet for hinging the damper. The hinged sheet is vertically arranged at the top of the integrated support 8, a hinged hole is formed in the hinged sheet, and the bottom of the shock absorber is hinged to the hinged sheet through the hinged hole.
In any of the above technical solutions, further, a buffer block 9 made of rubber is disposed on the integrated bracket 8. The buffer block 9 is made of rubber, is of a hollow structure, is small in load and small in compression stroke, has small rigidity, is in the auxiliary spring action stage, and provides an elastic element function. When the load is large and the compression stroke is large, the rigidity of the buffer block 9 is large, and the buffer block is in the action stage of the limiting block and provides the buffer limiting function.
In any of the above solutions, further, the knuckle 5 side is connected to the track rod knuckle arm 2. The upper part of the steering knuckle 5 is connected with the upper cross arm 4, the lower part of the steering knuckle is connected with the lower cross arm 6, a connecting piece 15 positioned at the side part is connected with the steering tie rod knuckle arm 2, and the connecting piece 15 is positioned between the upper cross arm 4 and the lower cross arm 6.
In any of the above solutions, further, the knuckle 5 is connected to the knuckle arm 2 via a tie rod 14.
In any of the above technical solutions, further, a power cylinder 1 is disposed on the steering rod knuckle arm 2. The steering link arm 2 is a rack and pinion steering link arm, the traditional rack and pinion steering link arm 2 is generally used for independent suspension automobiles with small load, and a parallel power-assisted oil cylinder 1 is arranged on the steering link arm 2 to ensure that enough steering force can be provided.
The independent front suspension with the double-wishbone structure provided by the second aspect of the present invention is provided with the transverse leaf spring structure provided by the first aspect, so that all the beneficial effects of the transverse leaf spring structure provided by the first aspect are achieved, and details are not repeated herein. The steering knuckle is connected with the wheel.
Example two
In any of the above technical solutions, further, the middle of the transverse plate spring 13 is connected to the frame through a plate spring middle fixing seat 10. The plate spring middle fixing seat 10 is fixed at the bottom of the frame through a U-shaped bolt 11.
The material of the transverse plate spring 13 can be spring steel, and can also be a composite material plate spring, and the composite material is a mixture of epoxy resin and glass fiber.
The transverse plate spring 13 can replace a transverse stabilizer bar, and a bracket of the transverse plate spring 13 is simpler than an air spring, a spiral spring and a longitudinal plate spring bracket, has smaller volume and can reduce the weight of an elastic element. The horizontal plate spring 13 is relatively simple to be stressed, and a composite plate spring can be configured, so that the weight is further reduced. The transverse plate spring 13 is connected with a plate spring middle fixing seat 10 through a non-metal cushion block 12, the non-metal cushion block 12 is vulcanized or fixed by adopting other processes, and a positioning mounting column is designed. The rest of the embodiments are the same as those of the first embodiment, and are not described herein again.
In the transverse plate spring structure provided by the invention, a steering system consists of a power-assisted oil cylinder 1, a steering pull rod knuckle arm 2 and a steering pull rod 14, and the control function of a suspension is ensured. The suspension system comprises a shock absorber 3, an upper cross arm 4, a steering knuckle 5, a lower cross arm 6, a plate spring end fixing seat 7, an integrated support 8, a buffer block 9, a plate spring middle fixing seat 10 and a transverse plate spring 13, provides guiding, elastic and damping functions, and guarantees suspension operation stability, smoothness and NVH performance. The transverse plate spring structure provided by the invention is suitable for light trucks, passenger cars and medium-heavy trucks, and the installation space of the double cross arms is ensured by the wide frame; the gear rack steering tie rod knuckle arm 2 ensures excellent steering performance and good maneuverability; the transverse leaf spring 13 saves suspension space and provides structural feasibility for reducing height. And meanwhile, the integrated independent suspension reduces the weight of the axle and the elastic element, and facilitates the light weight of the whole vehicle.
In summary, in the transverse leaf spring structure provided by the invention, the transverse leaf spring, the buffer block and the shock absorber are arranged on the lower cross arm, the steering knuckle is also provided with the steering pull rod knuckle arm, and through the integration of the transverse leaf spring, the buffer block, the shock absorber and the steering pull rod knuckle arm, the transverse leaf spring saves the suspension space, thereby providing structural feasibility for reducing the height, and meanwhile, the structure of the lower cross arm integration reduces the weight of an axle and an elastic element, thereby facilitating the light weight of the whole vehicle, and having the advantages of saving the suspension space, lightening the vehicle and the like.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (7)
1. A transverse leaf spring structure, comprising: the steering knuckle comprises a steering knuckle, an upper cross arm and a lower cross arm, wherein the upper cross arm and the lower cross arm are respectively connected with the steering knuckle;
the lower cross arm is also provided with an integrated bracket for fixing a shock absorber, and the transverse plate spring is arranged on the integrated bracket in a penetrating way and is connected with a fixed seat at the end part of the plate spring; the integrated support is provided with a hinged sheet for hinging the vibration absorber and a buffer block made of rubber.
2. The transverse leaf spring structure of claim 1 wherein the lower cross arm is provided with a leaf spring end mount for securing the transverse leaf spring.
3. The transverse leaf spring structure of claim 1 wherein the knuckle side is connected to the track rod knuckle arm.
4. The cross leaf spring structure of claim 3 wherein the knuckle is connected to the tie rod knuckle arm by a tie rod.
5. The transverse leaf spring arrangement according to claim 1, wherein a power cylinder is provided on the steering link arm.
6. The transverse leaf spring structure of claim 1 wherein the transverse leaf spring is connected to the frame via a leaf spring mid mount.
7. A double wishbone configuration front independent suspension, comprising a transverse leaf spring configuration according to any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810663217.9A CN108638777B (en) | 2018-06-25 | 2018-06-25 | Transverse plate spring structure and double-cross arm structure front independent suspension |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810663217.9A CN108638777B (en) | 2018-06-25 | 2018-06-25 | Transverse plate spring structure and double-cross arm structure front independent suspension |
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| CN108638777A CN108638777A (en) | 2018-10-12 |
| CN108638777B true CN108638777B (en) | 2020-06-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110077187A (en) * | 2019-05-13 | 2019-08-02 | 杭州傲拓迈科技有限公司 | A kind of high bearing capacity vehicle platform |
| CN113264117A (en) * | 2021-06-29 | 2021-08-17 | 上海卓迅汽车科技有限公司 | Suspension platform of minicar |
| CN216374098U (en) * | 2021-11-22 | 2022-04-26 | 宁德时代新能源科技股份有限公司 | Suspension structure and vehicle |
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| US5275430A (en) * | 1992-02-05 | 1994-01-04 | Dbx Engineering Corporation | Trailer suspension apparatus |
| CN201287599Y (en) * | 2008-09-26 | 2009-08-12 | 柳州五菱汽车工业有限公司 | Transverse band spring independent suspension steering bridge of automotive vehicle |
| CN102328562B (en) * | 2011-10-09 | 2013-07-31 | 中国农业大学 | Automobile independent suspension with transverse leaf spring |
| CN102416836B (en) * | 2011-10-30 | 2014-05-07 | 刘守银 | Transversal leaf spring type front independent suspension mechanism with sliding blocks at two ends |
| CN102887042B (en) * | 2012-09-26 | 2015-07-22 | 柳州孔辉汽车科技有限公司 | Independent front suspension with transversely arranged steel plate spring |
| CN203995534U (en) * | 2014-08-13 | 2014-12-10 | 辽宁曙光汽车集团股份有限公司 | The independent front suspension of horizontal non-metal leaf spring |
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